The top seed in the singles draw has shown his ability in doubles this year, advancing to the semi-finals of the BNP Paribas Open last month alongside Fabio Fognini. And while the Djokovic brothers reached the last four in Doha to start the season, they could not beat the Colombians on Monday, falling after 55 minutes.

That was not an upset given the ATP Doubles Team Ranking of the Colombian team, but reigning Australian Open champions Pierre-Hugues Herbert and Nicolas Mahut losing was. Dutchmen Robin Haase and Wesley Koolhof beat the top seeds 7-6(4), 7-6(2) in one hour and 38 minutes. Herbert and Mahut saved six of the seven break points they faced, but it was not enough to defeat the unseeded pair, which won 73 per cent of its first-serve points.

The Dutchmen will next play Acapulco champions Alexander Zverev and Mischa Zverev, who ousted Romain Arneodo and Hugo Nys, wild cards from Monaco, 4-6, 6-4, 10-7. The Zverev brothers lost only one service point in the Match Tie-break, moving on after one hour and 13 minutes.